Attachment for preventing idle filling threads from entering cloth on multiple shuttle looms



Dec/'7,1

943. J. F. MuHElM 2,336,118

ATTACHMENT FOR PREVENTING` IDLE FILLING THREADS FROM ENTERING CLOTH ONMULTIPLE SHUTTLE LOOMS Filed Jan. 1, 19,42 3 Sheets-Sheetl 1 fzzvfefzto2' (fasepb Franci@ Mi/hen uqttarnegy 7 1943 I -.l F MuHElM Y 2,336,118

` ATTACHMENT FOR PREVE'NTING IDLE FILLING THREADS FROMv ENTERING CLOTHON' MULTIPLE SHUTTLE LOOMS Filed Jan. 1, 1942 3 Sheets-Sheet 2 laufentof '55mm' a. uqztozf' gy D. 7, l1943 1 J. F. MUHEIM 2,336,118

` ATTACHMENT Fon PREVENTING IDLE FILLING lTI-m'rzms FROM ENTERING cLoTHoNMULTIPLE `SHUTTLE Looms Filed Jan. 1;1942 3 Sheets-Sheet 3 Inventor JoP11 Handb Malz ein:

Patented Dec. 7, 1943 ATTACHMENT FOR PREVEN TIN G IDLE FILL- ING THREADSFROM ENTERING CLOTH ON MULTIPLE SHUTTLE LOOMS Joseph Francis Muheim,Providence, R. I., as-

signor to Henry Owens & Company, Inc., Providence, R. I., a corporationof Rhode Island `Application January 1, 1942, Serial No. 425,360

18 Claims.

My invention relates to improvements in an attachment for preventingidlelling threads from entering cloth on a multiple shuttle loom, whichmay be either built into the loom as it is being originally constructed,or which may be sold as an attachment for a, loom already in production.

In weaving cloth on a multiple shuttle loom having a lay and a multiplecompartment shuttle box vertically reciprocatable up and down to aplurality of positions to bring selected respective compartmentsopposite an end of said lay for employing filling from the shuttle inthe compartment then opposite the lay, whether employed on a pick andpick loom, multi-color loom, a double shuttle loom or other types ofmulti-compartment looms, employing any number of compartments actuatedin the above manner, great difculty has been experienced in having thethreads from the shuttles in the respective compartments becoming looseand being carried a distance inwards of the selvage of the woven clothby a shuttle from a vertically adjacent shuttle compartment. Thus aftershifting shuttle compartments, the idle shuttles are either above orbelow the upper surface of the lay and have threads which extend to theselvage. These threads are likely to become entangled with a movingshuttle on the actuation thereof, which carrying of the threads from theidle shuttles into the woven cloth has often been called trailing in inthe trade. This trailing in is the source of much trouble and damage tothe woven material, with a loss of time and hence extra cost in theproduction of the cloth. Even if the trailings in be individually pulledout on a later inspection, unsatisfactory cloth still results.

Further objects of my invention relate to the specic structure of meansI employ for this purpose, comprising thread gripping clasps attached tothe inner end of each shuttle compartment to keep the thread from theidle shuttle contained therein in a taut condition as it extends to theselvage, positively preventing its entanglement, which thread vgrippingmeans are automatically released by suitable means for this purpose,carried by the lay as the respective shuttle compartment is raised orlowered into operative position opposite the end of the lay for theactuation of the shuttle therefrom, which means also functions to retainsaid thread gripping means in open position until its respective shuttlebox compartment is moved away out of alignment with the end of the laywhen the thread gripping means again takes effect to positivelyprevent aloose thread end which thus cannot become entangled withthreads fromother then operating shuttles. An object of my invention, therefore, isto provide a device which will positively retain the thread ends fromthe respective idle shuttles in their respective compartments in a tautgripped position until it is again desired to use the shuttle from suchrespective compartment.

Further features of my invention relate to the construction of thespecific means I preferably employ for this purpose.

These and such other objects of my invention as may hereinafter appearwill` be best understood from a description of an embodiment thereof,such as is shown in the accompanying drawings.

In the drawings,

Fig. 1 is a diagrammatic rear perspective view of one end 0I a layhaving a four compartment movable shuttle box` vertically reciprocatablethereon equipped with my invention and showing the lay adjacent itsforemost beatup position immediately after laying a thread from ashuttle shown in #3 compartment, with the thread gripping means of myinvention for the corresponding #3 compartment actuated to an openposition.

Fig. 2 is a diagrammatic rear perspective view similar to Fig. 1,illustrating the shifting of the shuttle box and illustrating how, inaccordance with my invention, the thread gripping means for the #3shuttle box compartment pivots to a thread gripping position and thethread gripping means for the #2 shuttle box compartment is released asthe shuttle box is moved downwards so that the shuttle in #2 compartmentmay become the active shuttle.

Fig. 3 is a diagrammatic rear perspective view exactly similar to Fig. 2at the same portion of the stroke of the lay, but with the multipleshuttle Vbox being raised to permit closing of the thread gripping meansin the #I compartment and to positively open the thread gripping meansfor the #2 compartment as the #2 compartment is being raised to activeposition in alignment with` the lay so that its respective shuttle maybecome the active shuttle.

Fig. 4 is a diagrammatic rear perspective view similar to Figs. 1-3 withthe lay moved to its extreme rearmost position adjacent which theshuttle from the #2 shuttle box compartment is urged by the picker stickacross the lay andillustrating how the thread gripping means for said #2shuttle box compartment is retained in an open position for the passingof the shuttle in and out of said #2 compartment.

Fig. 5 is a side elevation of the unit I preferably employ which may beattached to the front Wall ofthe shuttle box having a plurality ofthread gripping means constructed in accordance with my invention,vertically spaced from each other the normal distance betweencompartments, showing the wall of the shuttle box in dotted lines, andthe movable jaw for #2 compartment in raised position in dotted lines.

Fig. 6 is a plan View of the attachment shown in Fig. 5.

Fig. 7 is a rear end elevation of a portion thereof carrying a singlethread gripping means.

Fig. 8 is a perspective View of the cam plate I preferably employ foractuating the respective thread gripping means on the respective uppercompartments and the means I preferably employ for vertically,horizontally and transversely adjustably mounting it on the outer end ofthe lay adjacent the movable shuttle box, illustrating it insubstantially the position it assumes in the perspective views shown inFigs. 1-4.

In the drawings, wherein like characters of reference generally indicatelike parts throughout, in order that my invention may be more clearlyunderstood, I have diagrammatically illustrated certain portions of amultiple shuttle loom having a lay lil and a multiple compartmentshuttle box i2 vertically reciprocably mounted on one end thereof. Asillustrated in Figs. 1-4, the lay is pivotally mounted and actuated by asuitable crank shaft (not shown) to pivot from its foremost position'shown in Fig. 1 at which it beats up the just laid lling thread intoposition between the warp threads of the cloth, to its rearmost positionshown in Fig. 4 adjacent which the picker stick (not shown) operates tothrow the shuttle over the upper surface of the lay. Themulti-compartment shuttle box I2 is vertically reciprocated to bring aselected #|Sb, 2gb, 35h or isb compartment containing respectively a#15, 2S, 3S or is shuttle into alignment with the upper surface of thelay, said mechanism being controlled by the usual box chain mechanismwhich becomes eective to vertically shift the respective compartments,as shown in Figs. 2 and 3, substantially as said lay lil is adjacent itsrearmost position shown in Fig. 4. As'stated hitherto, my invention isapplicable to any type of a multishuttle loom having such a verticallyreciprocable multi-shuttle compartment shuttle box. In theembodimentshown, I have illustrated it on a 4x l multi-color loom,although if desired it may be employed in a pick and pick loom or adouble shuttle loom in which there is a vertically reciprocable shuttlebox on each end of the lay. My invention is applicable for use with amovable shuttle box employing any number of compartments and shuttles.As shown, the multiple compartment shuttle box I2 is verticallyreciprocated immediately adjacent the end 2li of the lay bythe rod 2)controlled by suitable mechanism (not shown).

fIn the operation of such a multiple compartment shuttle box loom therespective threads #IR 2i, 3t and it are laid respectively from theirrespective shuttles to form the filling threads extending transverselyof the cloth. When laid, these respective threads #it 2t, 3i and it areusually taut, but if a shuttle is loose in its respective compartment#ISE 2st), 35h or 45h, these respective threads #L 2,' 3 and 4 are aptto become loose both from movements caused by thevertically'reciprocating movement of the shuttle box and shocks causedby the beatup movement of the lay and the takeup movement of the cloth.

In addition, as soon as any slack occurs in the filling, due to itstwist it is apt to kink. rlhus while the threads tilt, 2i, 3i and itrespectively have tended to be taut when laid7 before their respectiveshuttles are to be employed again, they are apt to become loose and getin the way of the other then active shuttles to be carried by therespective shuttles at least a distance laterally Athrough the clothinwardly of the soli/age, causing the so-called objectionable traiiingsin hitherto referred to. The main object of my invention, as stated-isto positively retain these respective threads #l 2t, Si and li in theirtaut position as laid until it is desired to use their respectiveshuttles again so that they will be positively held in a position out ofthe way of other respective active shuttles to positively prevent anytrailings in.

For this purpose I provide a thread gripping means adapted to extendbetween the end of the lay l@ and the inner end of each upper shuttlebox compartment #ls Zsb and 38h, preferably mounted on the front wall ofeach compartment to extend between the outer end Zi of the lay and theinner end 39 of the shuttle box i2, releasable to permit movement of ashuttle to and from its respective compartment so that when therespective shuttles #l 2S and 3S are being employed, said threads itil,2' and 3i or any portion thereof will remain in a taut position, and Iprovide means Z8 permanently mounted on said adjacent end 24 of the layfor releasing each respective thread gripping means 221, 222Y and 223 asits respective compartment #i511 2gb or 35h is brought into alignmentwith the upper surface 26 of the lay on said aforedescribed up or downmovements of said shuttle box, said means 28 being also capable ofretaining a respective thread gripping means 221, 222 or 223 in saidopen position, permitting movement of the shuttie is, 2S or 3S from itsrespective compartment Msi), 2Slo or 35h, shown in Figs. 1-4, until saidrespective shuttle box compartment #isa 2Sb or 351 is again verticallyshifted to a different position in the manner shown in Figs. 2 and 3.

AsV stated, the thread gripping means and releasing means 28 may beconstructed as an integral part of the loom in its initial manufacture,but I have shown in the drawings my invention comprising two pieces onlyadapted to be mounted as attachments on already existing looms. Whilethe various thread gripping means 221, 222 and 223 may be individuallymounted on the inner end B of the multi-compartment shuttle box i2immediately inwardly of their respective compartments #i512 2Sb or S511,I preferably mount the respective thread gripping means 221, 222 and 223on a common supporting means 32 so that the device may be attached vas aunit to have the respective thread gripping means extend in properrelationship across the inner ends of their respective compartments #L 2and 3.

In the preferred embodiment shown, said supporting means S2 comprises aat bar 32, in the embodiment shown comprising an L-bar having the base313 and the l.-arrn 36. The base 34 is substantially' the combinedheights of the combined compartments #ISR 25h, 35h and isb and isprovided with suitable screw holes 3E so that the base Sii may besecured to the front wall lil of the shuttle box i2 adjacent the innerend Si! thereof by suitable screws 12, or in any other suitable manner.In the embodiment shown, each thread gripping means comprises astationary jaw and a movable jaw. In the embodiment shown thethreerespective `stationary jaws 441, 442 and 443 for each respective uppercompartment #ISIL 2sb and 3sb are mounted on said supporting bar 32 atvertically spaced distances substantially-the heights of the respectivecompartments #2sb and 3Sb to extend when said bar 32 is attached to saidshuttle box respectively transversely interior of the inner end of eachrespective shuttle box compartment immediately below the level of eachrespective bottom wall 481, 482 and 483 thereof. Each movable jaw 461,462 and and 463 is pivotally mountedY as at 58 to pivot into threadgripping relationship with its respective jaw 441, 442 or 443. In orderto prevent each respective thread #IE 2t or 3t from becoming ientangledwith its pivot 56, each stationary .law may be provided with aguide arm 52 projecting upwardly from the inner edge thereof adjacentthe front end thereof near said pivot 50. If desired, each stationaryarm may be transversely grooved to provide a trough 54 to provide a bend55 in each respective thread as it is being gripped for the moreeffective gripping thereof (see Fig. 7). In theembodiment shown, eachstationary arm comprises a separate member soldered, riveted orotherwise secured to the forwardly projecting arm 3G of said bar 32.Substantially adjacent the front end of each stationary arm I providethe pair of pivot ears 56 and 58. The outer pivot ears of each paircomprise the lugs 58 individually projecting integrally forwardly fromthe base 34 which are bent forwardly to extend ata spaced distance fromthe portion of the arm 36 opposite thereto which forms the oppositerespectivelear 58 out of a portion of said arm 66. Said respectiveears56 and 58 are provided with the respective pivot holes 82 and 64horizontally aligned with each other. The pivot pin 50 is looselymounted within said pivot holes 62 and 64 to pivot therein. Eachcooperating movable thread gripping sheet metal jaw 481, 452 or 463 isrigidly mounted on the inner end of said pivot pin 5I) and has an arm 66projecting forwardly and downwardly from said pivot pin 56 having anactuating pin 681, 682 or 683 projecting laterally therefrom, which inthe embodiment shownhas the roller 'I8 pivotally mounted thereon. Asmeans to urge the movable jaw into thread gripping relationship with thestationary jaw, I provide the coil spring 'I2 surrounding said pivot pin58 between said ears 56 and 58, having the extended inner end thereofabutting said base 34 and its outer end rigidly secured to said pivotpin 58 in any suitable manner, such as by the set screw 14. It isapparent, however, that one end of the spring may be rigidly secured toany adjacent stationary part and the other end rigid- 1y secured to anyadjacent movable part to function to positively move the gripping jawinto gripping relationship with its respective stationary jaw to gripthe respective thread #IR 2t or 32 therein, said stationary jaws andmovable jaws thus forming thread gripping means.

The pivot pin 881, 682 or 683 projecting laterally inwardly from thefront end 66 of each respective movable jaw provides actuating means formoving said movable jaw away from gripping position with said stationaryjaw, and I provide suitable means 28 eiective to abutV said pins 681,682 or 683 to raise said respective movable jaws 481, 62 or 463 awayfrom their respective stationary jaws 44 as the shuttle box I2 isvertically shifted to bring a selected compartment thereof oppositethelend26 of the lay for the actuation of its respectiveshuttle. Forthis purpose, in the embodiment shown, I employ the camplate 28preferably vertically, horizontally and transversely adjustablymountable on the front wall 'I6 of said lay adjacent the upper surfacethereof at the multiple shuttle box end thereof so as to provide therear cam edge 'I8 projecting between said outer end 24 of the lay andthe inner end 38 of said movable shuttle box I2 in the path of verticalreciprocation of said movable jaw actuating pins 681, 882 and 683. Saidcam plate 28 has a rear edge having a concave upper portion and a convexlower portion 82, said portion 68 being adapted to contact a respectiveactuating pin 681, 882 or 683 on the downward movement of said shuttlebox I2 and said portion 82 being adapted to contact 'a respectiveactuating pin 681, 682 or 683 on the upward movement of said shuttle boxI2, to raise the respective movable jaws 461, 482 or 463 of thecompartment #Isb, 25h or 351 being brought adjacent the end of said layas said shuttle box I2 is raised or lowered to bring said respectivedesired compartment #Isb, 2Sb or 351 into alignment with the uppersurface Z8 of the lay. Said cam I8 is also provided with an intermediatefiat dwell portion 84 adapted when said shuttle box compartment #L 2 or3 is brought into the position shown in Fig. 4 at the end of the forwardstroke of the lay to continue to contact its respective pin 68 to retainits respective movable jaw 461, 462 or 483 in raised position,permitting movement of the respective shuttle to and from its respectivecompartment for the desired number of throws of the shuttle to or fromthe aligned compartment until said respective shuttle box is againreciprocated up or down to a different position.

While said cam means 28 may be vertically, horizontally and transverselyadjustably mountable on the front wall 'I6 of said lay adjacent theupper surface thereof at a multiple shuttle box end thereof in anysuitable manner, in the embodiment shown I preferably construct it ofthe following parts for this purpose. I provide an adjusting L-bar 88adapted to have one arm 88 thereof projecting upwardly, said arm beingprovided with a vertical slot 88 extending downwardly from the upper endthereof adapted to adjustably receive a bolt 92 therein, as shown inFig. 3, for the vertical adjustment thereof and securement thereof tothe front wall 'I8 of the lay adjacent the upper surface thereof 'atsaid multiple shuttle box end thereof, and a lower arm 94 projectingforwardly from the lower end of said vertical arm 88 having a pluralityof horizontally aligned vertically adjustable bolts B5 projectingupwardly from the upper surface thereof. I also provide a supplementaladjusting L-bar 98 having a base |88 having a horizontal slot I8?projecting outwardly from the inner end thereof for 'adjustablyreceiving said bolts 85 therein for horizontal adjustment relative tothe outer end 24 of the lay I8, and an arm IM projecting upwardly fromthe outer end thereof having the vertically spaced horizontal slots I86therein projecting forwardly from the rear edge thereof, and I providethe cam plate |88 having the vertically aligned inwardly projectingbolts I i fi on the front end thereof `horizontally adjustable Withinsaid slots |86 for the tranverse adjustment of the rear cam surface 'I8thereof between the outer end 24 of the lay and the inner end 38 of saidshuttle box.

In the actual embodiment shown, while I employ the word bolts todescribe the members 82', 96 and I I8, in the actual embodiment shownthese comprise locking set screws adjustable within threaded holestherefor in their inter-engaging members. It ris thus obvious thatvertical adjustment of said cam means 28 is provided byvertical movementof the slot 9B of said L-bar arm 88 relative to said bolt 92, thathorizontal adjustment of said cam means is provided by horizontalmovement of the slot i02- relative to said bolts 95 and that transverseadjustment of said cam means is provided by transverse adjustment of thelock-ing bolts Hi! in the slots 106. The flat dwel-l portion 84 of the-cam 28 is essential in order that the movable jaw i of the respectivecompartment may be retained open kfor free passage of the shuttle acrossthe lay to and from the aligned compartment. Y

I have illustrated` in Fig. l the position the parts assume when aftershuttle #3S has been thrown from the opposite rshuttle box across 'thesurface of the lay, the lay has been moved forward to beat up the. justlaid thread #3i into the woven fabric llt. It may be seen in thisinstance how the dwell portion 813 of the cam abuts the pin 83 to retainthe gripping finger 463 in a. raised open position, permitting freemovement of a shuttle in and out of #351 compartment.

Fig.V 2 illustrates the shifting from a #3 to a #2 compartment bylowering the shuttle: box l2 as the lay IG is adjacent the end of itsforward stroke. In this position it Will be seen that the threadgripping means v'H53 for the #3' compartment has been released by thecam 18- permitting the spring i2 to urge it. to closed position to gripits respective thread #3, and that the gripping means 222 for the #2compartment is being opened as the #2 compartment has its bottom. wall4t2 brought into alignment with the top surface 25 of the lay, the uppersurface 80 of the cam 'i8' abuttingv the pin S82 to cause it to raiseits respective grippingA jaw 452 until the mid position of the lay isreached on its backward stroke, as shown in Fig. 4, when therespectivebottom wall 4t2 of the #2V compartment is brought into alignment withthe top wall 26 of the lay and the pin E82 has been forced rearwards toabut the dwell portion il@ of the cam to retain the gripping jaw zin acompletely raised open` position, permitting passage of a shuttle in andout of compartment #2 andY back and forth across the lay IEB', asindicated in Fig. 4 until the shuttle boxy is'againl shifted to bring adifferent compartment into alignment with the upper surface of the. lay.

Fig. 3 illustrates the shuttle box l2: being raised from the positionmaking compartment #lsb the effective compartment to a position makingcompartment #sb the effectiveY compart-- ment, as the lay approaches themid portion' of its backward stroke, in this instance the convex portion83 of the cam surface kabutting the pin 682 to pivot the gripping jaw582 to the raised.

open position shown in Fig'. 4, the cam surface 80 having in themeanwhile left thek pin 68'1 toV permit the spring 'F2 to close thegripping jaw 461. Also as the shuttle box is further raised to theposition shown in Fig. 4 at the completionY of the rearmcst stroke ofthe lay, the pin i382 vwillagain abut the flat portion 84 of the cam soas to retain the gripping jaw "it in open position, permitting thepassage cf the shuttle to and from its respective compartment in themannen previously explained until the shuttle box is again shifted. Itis thus apparent that as the shuttle box is raised to permit arespective lower compartment thereof to be brought into alignment withthe upper surfacey Et'of the laythatthe'camA surface 82 will contact itsrespective pin 68 to actuate its respective gripping meams 22, Vas shownin Fig; 3;, and that as the shuttle boxV l2 is respectively lowered tobring an upper compartment into alignment with the lay, the cam surface8G will abut the respective pin 63 to rei lease its' respective grippingmeans 22 to permit passage of its respective shuttle from its'respectivecompartm-ent.- It will be apparent, however, that as eachgripping means is ineffective only when it ,isv being moved to orretained in' an open position, as shown in Figs. 2,k 3 and 4, thatV onlyone gripping mea-ns can be released at a time so that my improved devicewill positively retain the other respectivethreads #l2 2t or 3'c in atautcondition as they extend from the selvage Ht of the fabric beingwoven to the respective shuttles #I 2sr or 3S so that they willpositively v be out of the way of any lower shuttle in its passageacross the lay, thus preventing said lower shuttle from striking themand trailing them in thev fabric being woven; No thread griping means 22are needed for the shuttle inthe lowermost compartment, as I have foundout from experimentation that only lower shuttles can trail in to thefabric the respective threads from higher shuttles.

It is apparent, therefore, that: I have provided a novel attachment forpreventing trailings in which may be either constructed as an integralpart ofthe loomor which may be sold as a separate attachment for loomsalready in operation, with the advantages described above.

Itis understood that my invention is not limited to the specificembodiment shown and` that various deviations may be made therefromwithout departingy from the spirit and scope of the appended claims;

What I claim is:

1. In a, devicefor preventingV idle filling threads from enteringAclothwoven on: a multiple shuttle loom having a layV and a multipleAcompartment shuttle box vertically reciprocable up and down to aplurality of positionsY to bring` a selected respective compartmentopposite an end of said lay, thread gripping means having a portionxedly mounted relative to` each upper shuttle box compartment andaportionf movably mounted relative to saidl x'edly mounted portion toretainthreads from shuttles: contained therein and extending to theselvage of the cloth being woven ina taut: condition during actuation.of saidl loom, and meansfor moving said movably mounted portionr out ofthread; gripping relationship with the vfixedly mounted' portion ofsaidthread gripping means only when its respective compartment is broughtinto alignment with the upper surface off` the lay on said respective upand down movements of' said shuttle box and to retain said respectivethread gripping means for said compartment in alignment with the uppersurface ofi said' lay in open position permitting movement of theshuttleto and from said respective aligned compartment until the shuttlebox is' again reciprocatecl to a different position.k

2., Ina devicefor preventing idle filling threads from entering clothwoven on a multiple shuttle loom having a lay and a multiple compartmentshuttle box vertically reciprocable up and down to a plurality ofpositions to bring a selected respective compartment opposite an end ofsaid lay, thread gripping means having a portion fixedly mounted on theinner end of each upper shuttle boxf compartment and a portion movably,

mounted relative thereto releasable from thread gripping engagement withsaid xedly mounted portion to permit movement of a shuttle to and fromits respective compartment and means carried by the lay for releasingeach thread gripping means as its compartment is brought into alignmentwith the upper surface of the lay on said respective up and downmovements of said'shuttle box and to retain said thread gripping meansin open position permitting movement of the shuttle to and from saidrespective compartment until the shuttle box is again reciprocated to adiierent position.

3. In a device for preventing idle lling threads from entering clothwoven on a multiple shuttle loom having a lay and a multiple compartmentshuttle box vertically reciprocable up and down to a plurality ofpositions to bring a selected respective compartment opposite an end ofsaid lay, a thread gripping clasp for each compartment comprising agrooved sheet metal stationary jaw rigidly mounted on the shuttle box toextend transversely interior of the inner end of its shuttle boxcompartment immediately below the level of the bottom wall thereofhaving a guard arm projecting upwardly from the inner edge thereofadjacent the front end thereof, and a cooperating movable threadgripping sheet metal` jaw pivotally mounted on a pivot pin mounted onears mounted to project forwardly from the front wall of said shuttlebox having an arm projecting forwardly and downwardly from said pivotpin having an actuating pin projecting laterally therefrom, and a coilspring having one end fixed to said pivot pin and an opposite fixed endnormally urging said movable jaw into grippingrcontact with saidstationary jaw, and flat cam means mounted on said lay to projectbetween the end of said lay and said movable shuttle box in the path ofvertical reciprocation of said movable jaw actuating pins having a rearedge having a concave upper portion and a convex lower portion adaptedto contact a respective actuating pin to raise its respective movablejaw of a respective compartment as said shuttle box is respectivelyraised or lowered to bring said respective compartment into alignmentwith the upper surface of the lay and an intermediate dwell portion toretain said movable jaw in raised position permitting movement of theshuttle to and from said respective compartment until the shuttle box isagain reciprocated to a diiferent position.

4. In a device for preventing idle filling threads from entering clothwoven on a multiple shuttle loom having a lay and a multiplecompartment4 shuttle box vertically reciprocable up and down to aplurality of `positions to bring a selected respective compartmentopposite an end of said lay, a thread gripping clasp for eachcompartment comprising a stationary jaw rigidly mounted on the shuttlebox to extend transversely interior of the inner end of its shuttle boxcompartment immediately below the level of `the bottom Wall thereof, anda cooperating movable thread gripping jaw pivotally mounted on a pivotpin mounted on ears mounted to project forwardly from the front wall ofsaid shuttle box having an arm projecting forwardly and downwardlytherefrom having an actuating pinprojecting laterally therefrom, andspring means normally urging said movable jaw into gripping contact withsaid stationary jaw, and flat cam means mounted on-said lay to projectbetween the end of said lay and said movable shuttle box in the path ofvertical reciprocation of said movable jaw actuating pins having a rearedge having a concave upper portion and a convex lower portion adaptedto contact a respective actuating pin to raise its respective movablejaw of a respective compartment as said shuttle box is respectivelyraised or lowered to bring said respective compartment into alignmentwith the upper surface of the lay and an intermediate dwell portion toretain said movable jaw in raised position, permitting movement of theshuttle to and from said respective compartment until the shuttle box isagain reciprocated to a different position.

5. An attachment for use in preventing idle illing threads from enteringcloth woven on a multiple shuttle loom having a lay and a multiplecompartment shuttle box vertically reciprocable up and down to aplurality of positions, successively bringing selected respectivecompartments opposite an end of said lay, thread gripping means for eachupper shuttle box compartment each having a portion xedly securableadjacent its respective compartment and a portion movable intojuxtaposition therewith to retain threads from shuttles containedtherein and extending to the selvage of the cloth being woven in a tautcondition during actuation of said loom, and means securable to the loomfor releasing said thread gripping means only when its respectivecompartment is brought into alignment with the upper surface of the layon said respective up and down movements of said shuttle box and toretain said respective thread gripping means for said compartment inalignment with the upper surface of said lay in open position permittingmovement of the shuttle to and from said respective aligned compartmentuntil the shuttle box is again reciprocated to a different position.

6. An attachment for use in preventing idle lling threads from enteringcloth woven on a multiple shuttle loom having a lay and a multiplecompartment shuttle box vertically reciprocable up and down to aplurality of positions, successively bringing selected respectivecompartments opposite an end of said lay, comprising thread grippingmeans having a portion xedly securable to the inner end of each uppershuttle box compartment and a portion movably mounted relative thereto,releasable to permit movement of a shuttle to and from its respectivecompartment and means attachable to the lay for releasing each threadgripping means as its compartment is brought into alignment with theupper surface of said lay on said respective up and down movements ofsaid shuttle box and torretain said thread gripping means in openposition permitting movement of the shuttle to and from said respectivealigned compartment until the shuttle box is again reciprocated to adifferent position.

7. An attachment for use in preventing idle filling threads fromentering cloth woven on a multiple shuttle loom having a lay and amultiple compartment shuttle box vertically reciprocable up and down toa plurality of positions, successively bringing selected respectivecompartments opposite an end of said lay comprising thread grippingclasp means for each compartment mountable on the nnerend of eachshuttle box compartment having a movable portion movable to a positionpermitting movement of a shuttle to and from its respective compartmenthaving an actuating pin projecting laterally therefrom, an adjustingL-bar having a slot in 4one arm thereof adapted Vto yadjustably receivea bo-lt therein `for securement thereof to the iront wa-l'l ofthe lay`adjacent the upper surface thereof at a multiple shuttle box endthereof and a plurality -of horizontally aligned vertically -e'xtendingadjusting bolts projecting -upWard-lyfrom the other arm thereof, asupplemental adjusting L-"bar having a ibase having a horizontal slotfor adjustabl-y receiving said Aadjusting bolts therein for lhorizontaladjustment relative to the end of the lay yand `an arm projecting-upwardly therefrom having vertically spaced horizontal slotsvprojecting forwardly therein from the rear edge thereof, anda cam platehaving vertically `aligned bolts on the `front kend thereof horizontallyadjustable within said slots and `a rear cam edge projecting 'betweenthe `end of said lay and said movable shuttle box in the path ofvertical reciprocation of said movable portion actuating pins having arear edge having a concave upper portion and a convex lower portionadapted to contact a respective actuating Apin to move its respectivemovable portion for a respective compartment as said shuttle box isrespectively raised or lowered to bring said respective compartment intoalignment With the upper surface of the lay and an intermediate dwellportion to retain said movable portion in a position permitting movementof the shuttle to and from said respective compartment until'the shuttlebox is again reciprocated to a different position.

8. An attachment for usein preventing idle filling threads from enteringcloth woven on a multiple shuttle loom having a lay and a multiplecompartment shuttle box vertically reciprocable up and down to aplurality of positions7 successively bringing selected respectivecompartments opposite an end of said lay comprising thread grippingclasp means for each compartment mountable on the inner end of eachshuttle box compartment having a movable portion movable to a positionpermitting movement of a shuttle to and ,from its respective compartmenthaving an actuating pin projecting laterally therefrom, and

a cam plate vertically, horizontally and transversely adjustablymountable on the front Wall of the lay adjacent the upper surfacethereof at a multiple shuttle box end thereof having a rear cam edgeVprojecting between the end of said lay and said movable shuttle boX inthe path of vertical reciprocation of said movable portion actuatingpins having a rear edge having aconcave upper portion and a convex lowerportion adapted to contact a respective actuating vpin to move itsrespective movable portion for a respective compartment as said shuttlebox is respectively raised or lowered to bring said respectivecompartment into alignment with the upper surface of the lay and anintermediate dwell 4portion to retain said movable portion in a positionpermitting movement of the shuttle to and from said respectivecompartment until the shuttle box is again reciprocated to a differentposition.

9. An attachment for use Vin preventing idle iilling threads fromentering cloth woven on a multiple shuttle loom having a lay and amultiple compartment shuttle box vertically reciprocable up and down toa vplurality of positions, successively bringing a selected respectivecompartment opposite an end of said lay comprising Aa thread grippingclasp for each compartment comprising a grooved sheet metal stationaryjaw rigidly ymountable on lthe shuttle box to extend transverselyinterior -o'f the inner endo'f its shuttle lbox compartment immediately'below the level of the bottom wall thereof having a guard armprojecting upwardly from the inner edge thereof adjacent the front endthereof, and a cooperating movable thread gripping sheet metal jawpivotallymoun-ted on a pivot pin `mounted on lears mountable to project'forwardly from the front wall of said shuttle box having an armprojecting forwardly and downwardly from said pivot pin having anactuating pin `projecting laterally therefrom, and a coil spring havingone end fixed to said pivot pin and an opposite fixed end normallyurging said movable jaw into gripping contactwith said stationary jaw,and'flat cam means mountable on said layto project between the end ofsaid lay and ksaid movable shuttle box 'in Vthe path ofverticalreciprocal-,ion of `said movable `j aw actuating pins having a rear edgehaving a concave upper portion and a convex lower portion adapted tocontact a respective actuating pin to raise its respective movable jawof a respective compartment as said shuttle box is respectively raisedor lowered to bring said respective compartment into alignment with theupper surface of the lay and an intermediate dwell portion .to retainsaid movable jaw in raised position., permitting' movement of theshuttle to and from said respective compartment until the shuttle box isagain reciprocated to a different position.

l0. An attachment for use in preventing idle lling threads from enteringcloth woven on a multiple shuttle loom having a lay and a multiplecompartment shuttle box vertically reciprocable up and down to aplurality of positions, successively bringing a selected respectivecompartment opposite an end of said lay comprising .a thread grippingclasp for each compartment comprising a stationaryjaw rigidly mountableon the shuttle box toV extend transversely interior of the inner end ofits shuttle box compartment immediately below the level of the bottomwall thereof and a cooperating movable thread gripping jaw pivo-tallymounted on a pivot pin mounted on ears mountable to project forwardlyfrom the front wall of said shuttle box having an arm projectingforwardly and downwardly therefrom having an actuating pin projectinglaterally therefrom, and spring means vnormally urging said movable jawinto gripping contact with said stationary jaw, and at cam meansmountable on said lay to project between the end of said lay and saidmovable shuttle box in the path of vertical reciprocation of saidmovable jaw actuating pins having a rear edge having a concave upperportion and a convex lower portion adapted to contact a respectiveactuating pin to raise its respective movable jaw of a respectivecompartment as said shuttle box is `respectively raised or lowered tobring said respective compartment into alignment with the upper surfaceof the lay and an intermediate dwell portion to retain said movable jawin raised position, permitting movement of the shuttle to and from saidrespective compartment until the shuttle box is again reciprocated to adifferent position.

11. An attachment for use in preventing idle filling threads fromentering cloth woven on a multiple shuttle loom having a lay and amultiple compartment shuttle box vertically reoiprocable up and down toa plurality of positions, successively bringing a selected respectivecompartment opposite an end of said lay comprising a thread grippingclasp foreach compartment comprising a stationary jaw rigidly mountableon the shuttle box to extend transversely interior of the inner end ofits shuttle box compartment immediately below the level of the bottomwall thereof and a cooperating movable thread gripping jaw pivotallymounted on a pivot pin mounted on ears mountable to project forwardlyfrom the front wall of said shuttle box having an arm projectingforwardly and downwardly therefrom having an actuating pin projectinglaterally therefrom, and sprint,r means normally urging said movable jawinto gripping contact with said stationary jaw, an adjusting L-barhaving a slot in one arm thereof adapted to adjustably receive a bolttherein for securement thereof to the front wall of the lay adjacent theupper surface thereof at the multiple shuttle box end thereof and aplurality of horizontally aligned vertically extending adjusting boltsprojecting upwardly from the other arm thereof, a supplemental adjustingL-bar having a base having a horizontal slot for adjustably receivingsaid adjusting bolts therein for horizontal adjustment relative to theend of the lay and an arm projecting upwardly therefrom havingvertically spaced horizontal slots projecting forwardly therein from therear edge thereof, and a cam plate having vertically aligned bolts onthe front end thereof horizontally adjustable within said slots and arear cam edge projecting between the end of said lay and said movableshuttle box in the path of vertical reciprocation of said movable jawactuating pins having a rear edge having a concave upper portion and aconvex lower portion adapted to contact a respective actuating pin toraise its respective movable jaw of a respective compartment as saidshuttle box is respectively raised or lowered to bring said respectivecompartment into alignment with the upper surface of the lay and anintermediate dwell portion to retain said movable jaw in raisedposition, permitting movement of the shuttle to and from said respectivecompartment until the shuttle box is again reciprocated to a differentposition.

12. An attachment for use in preventing idle filling threads fromentering cloth woven on a multiple shuttle loom having a lay and amultiple compartment shuttle box vertically reciprocable up and down toa plurality of positions, successively bringing a selected respectivecompartment opposite an end of said lay comprising a thread grippingclasp for each compartment comprising a stationary jaw rigidlymountab-le on the shuttle box to extend transversely interior of theinner end of its shuttle box compartment immediately below the level ofthe bottom wall thereof and a cooperating movable thread gripping jawpivotally mounted on a pivot pin mounted on ears mountable to projectforwardly from the front wall of said shuttle box having an armprojecting forwardly and downwardly therefrom having an actuating pinprojecting laterally therefrom, and spring means normally urging saidmovable jaw into gripping contact with said stationary jaw, and a camplate vertically, horizontally and transversely adjustably mountable onthe front wall of the lay adjacent the upper surface thereof at themultiple shuttle box end thereof having a rear cam edge projectingbetween the end of said lay and said movable shuttle box in the path ofvertical reciprocation of said movable jaw actuating pins having a rearedge having a concave upper portion and a convex lower portion adaptedto contact a respectve actuating pin to raise its respective movable jawof a respective compartment as said shuttle box is respectively raisedor lowered to bring said respective compartment into alignment with theupper surface of the lay and an intermediate dwell portion to retainsaid movable jaw in raised position, permitting movement of the shuttleto and from said respective compartment until the shuttle box is againreciprocated to a different position.

13. An attachment for use in preventing loose ends in cloth woven on amultiple shuttle loom having a lay and a multiple compartment shuttlebox vertically reciprocable up and down to a plurality of positionssuccessively bringing selected respective compartments opposite an endof said lay, comprising a flat bar securable to the front wall of theshuttle box adjacent the inner edge thereof extending substantially thetotal height of the upper shuttle box compartments having a plurality ofgrooved sheet metal stationary jaws projecting rearwardly from the inneredge thereof to extend respectively transversely interior of the innerend of each respective shuttle box compartment immediately below thelevel of the bottom wall thereof, each having a guard arm projectingupwardly from the inner edge thereof adjacent the front end thereof, andpivot ears projecting forwardly therefrom substantially adjacent eachstationary arm, a pivot pin pivotally mounted on each of said ears, acooperating movable thread end gripping sheet metal jaw rigidly mountedon each pivot pin having an arm projecting forwardly and downwardly fromsaid pivot pin having an actuating pin projecting laterally therefrom,coil spring means surrounding said pivot pin between said ears having anend abutting said bar and the other end fixed to said pivot pin normallyurging said movable jaw into gripping contact with said stationary jaw,an adjusting L-bar having a slot in one arm thereof adapted toadjustably receive a bolt therein for securement thereof to the frontwall of the lay adjacent the upper surface thereof at the multipleshuttle box end thereof and a plurality of horizontally alignedvertically extending adjusting bolts projecting upwardly from the otherarm thereof, a supplemental adjusting L-bar having a base having ahorizontal slot for adjustably receiving said adjusting bolts thereinfor horizontal adjustment relative to the end of the lay and an armprojecting upwardly therefrom having vertically spaced horizontal slotsprojecting forwardly therein from the rear edge thereof, and a cam platehaving vertically aligned bolts on the front end thereof horizontallyadjustable within said slots and a rear cam edge projecting between theend of said lay and said movable shuttle box in the path of verticalreciprocation of said movable jaw actuating pins having a rear edgehaving a concave upper portio-n and a convex lower portion adapted tocontact a respective actuating pin to raise its respective movable jawof a respective compartment as said shuttle box is respectively raisedor lowered to bring said respective compartment into alignment with theupper surface of the lay and an intermediate dwell portion to retainsaid movable jaw in raised position, permitting movement of the shuttleto and from said respective compartment until the shuttle box is againreciprocated to a different position vertically, horizontally andtransversely adjustably mountable on the front wall of the lay adjacentthe upper surface thereof at the multiple shuttle box end thereof.

14. An attachment for use in preventing loose ends in cloth woven on amultiple shuttle loom having a lay and a multiple compartment shuttlebox vertically reciprocable up and down to a plurality of positions tobring a selected respective compartment opposite an end of said laycomprising a flat bar securable to the front wall of the shuttle boxadjacent the inner edge thereof extending substantially the total heightof the upper shuttle box compartments having a plurality of stationaryjaws projecting rearwardly from the inner edge thereof to extendrespectively transversely interior of the inner end of each respectiveshuttle box compartment immediately below the level of the bottom wallthereof, and a cooperating movable thread end gripping jaw pivotallymounted on said bar substantially opposite a respective stationary jawhaving an arm projecting forwardly and downwardly having an actuatingpin projecting laterally therefrom, spring means normally urging saidmovable jaw into gripping contact with said stationary jaw, and a camplate having a rear cam edge projecting between the end of said lay andsaid movable shuttle box in the path of vertical reciprocation of saidmovable jaw actuating pins having a rear edge having a concave upperportion and a convex lower portion adapted to contact a respectiveactuating pin to raise its respective movable jaw of a respectivecompartment as said shuttle box is respectively raised or lowered tobring said respective compartment into alignment with the upper surfaceof the lay and an intermediate dwell portion to retain said movable jawin raised position, permitting movement of the shuttle to and from saidrespective compartment until the shuttle box is again reciprocated to adifferent position, vertically, horizontally and transversely adjustablymountable on the front wall of the lay adjacent the upper surfacethereof at the multiple shuttle box end thereof.

15. An attachment for use in preventing loose ends in cloth woven on amultiple shuttle loom having a lay and a multiple compartment shuttlebox vertically reciprocable up and down to a plurality of positions tobring a selected respective compartment opposite an end of said laycomprising a at bar securable to the front wall of the shuttle boxadjacent the inner edge thereof extending substantially the total heightof the upper shuttle box compartments having a plurality of stationaryjaws projecting rearwardly from the inner edge thereof to extendrespectively transversely interior of the inner end of each respectiveshuttle box compartment immediately below the level of the bottom wallthereof', and

a cooperating movable thread end gripping jaw pivotally mounted on saidbar substantially opposite a respective stationary jaw havingan armprojecting forwardly and downwardly having an actuating pin projectinglaterally therefrom, spring means normally urging said movable jaw intogripping contact with said stationary jaw, and a cam plate having a rearcam edge projecting between the end of said lay and said movable shuttlebox in the path of vertical reciprocation of said movable jaw actuatingpins having a rear edge having a concave upper portion and a convexlower portion adapted to contact a respective actuating pin to raise itsrespective movable jaw of a respective compartment as said shuttle boxis respectively raised or lowered to bring said respective compartmentinto alignment with the upper surface of the lay and an intermediatedwell portion to retain said movable jaw in raised position, permittingmovement of the shuttle to and from said respective compartment untilthe shuttle box is again reciprocated to a different position, mountableon the front wall of the lay adjacent the upper surface thereof at themultiple shuttle box end thereof.

i6. An attachment for use in preventing loose ends in cloth woven on amultiple shuttle loom having a lay and a multiple compartment shuttlebox vertically reciprocable up and down to a plurality of positions tobring a selectedv respective compartment opposite an end of said laycomprising a flat bar securable to the front wall of the shuttle boxadjacent the inner edge thereof extending substantially the total heightof the upper shuttle box compartment having a plurality of grooved sheetmetal stationary jaws projecting rearwardly from the inner edgethereofto extend respectively transversely interior of the inner end of eachrespective shuttle box compartment immediately below the level of thebottom wall thereof, each having a guard arm projecting upwardly fromthe inner edge thereof adjacent the front end thereof, and pivot earsprojecting forwardly therefrom substantially adjacent each stationaryarm, a pivot pin pivotally mounted on each of said ears, a cooperatingmovable thread end gripping sheet metal jaw rigidly mounted on eachpivot pin having an arm projecting forwardly and downwardly from saidpivot pin having an actuating pin projecting laterally therefrom, coilspring means surrounding said pivot pin between said ears having an endxed to said bar and the other end xed to said pivot pin normally urgingsaid movable jaw into gripping contact with said stationary jaw, and acam plate having a rear cam edge projecting between the end of said layand said movable shuttle box in the path of vertical reciprocation ofsaid movable jaw actuating pins having a rear edge having a concaveupper portionv and a convex lower portion adapted to contact arespective actuating pin to raise its respective movable jaw of arespective compartment as said shuttle box is respectively raised orlowered to bring said respective compartment into alignment with theupper surface of the lay and an intermediate dwell portion to retainsaid movable jaw in raised position, permitting movement of the shuttleto and from said respective compartment until the shuttle box is againreciprocated to a different position, vertically, hori- Zontally andtransversely adjustably mountable on the front wall of the lay adjacentthe upper surface thereof at the multiple shuttle box end thereof.

17. An attachment for use in preventing loose ends in cloth woven on amultiple shuttle loom having a lay and a multiple compartment shuttlebox vertically reciprocable up and down to a plurality of positions tobring a selected respective compartment opposite an end of said laycomprising a flat bar securable to the front wall of the shuttle boxadjacent the inner edge thereof extending substantially the total heightof the upper shuttle box compartments having a plurality of groovedsheet metal stationary jaws projecting rearwardly from the inner edgethereof to extend respectively transversely interior of the inner end ofeach respective shuttle box compartment immediately below the level ofthe bottom wall thereof, each having a guard arm projecting upwardlyfrom the inner edge thereof adjacent the front end thereof, and pivotears projecting forwardly therefrom substantially adjacent eachstationary arm, a pivot pin pivotally mounted on each of said ears, acooperating movable thread end gripping sheet metal jaw rigidly mountedon each pivot pin having an arm projecting forwardly and downwardly fromsaid pivot pin having an actuating pin projecting laterally therefrom,coil spring means surrounding said pivot pin between said ears having anend fixed to said bar and the other end xed to said pivot pin normallyurging said movable jaw into gripping contact with said stationary jaw,and a cam plate having a rear cam edge projecting between the end ofsaid lay and said movable shuttle box in the path of verticalreciprocation of said movable jaw actuating pins having a rear edgehaving a concave upper portion and a convex lower portion adapted tocontact a respective actuating pin to raise its respective movable jawof a respective compartment as said shuttle box is respectively raisedor lowered to bring said respective compartment into alignment with theupper surface of the lay and an intermediate dwell portion to retainsaid movable jaw in raised position, permitting movement of the shuttleto and from said respective compartment until the shuttle box is againreciprocated to a different position, mountable on the front wall of thelay adjacent the upper surface thereof at the multiple shuttle box endthereof,

18. An attachment for use in preventing loose ends in cloth Woven on amultiple shuttle loom having a lay and a multiple compartment shuttlebox vertically reciprocable up and down to a plurality of positions tobring a selected respective compartment opposite an end of said laycomprising a fiat bar securable to the front wall of the shuttle boxadjacent the inner edge thereof extending substantially the total heightof the upper shuttle box compartment having a plurality of stationaryjaws projecting rearwardly from the inner edge thereof to extendrespectively transversely interior of the inner end of each respectiveshuttle box compartment immediately below the level of the bottom wallthereof, and a cooperating movable thread end gripping jaw pivotallymounted on said bar substantially opposite a respective stationary jawhaving an arm projecting forwardly and downwardly having an actuatingpin projecting laterally therefrom, spring means normally urging saidmovable jaw into gripping contact with said stationary jaw, an adjustingL-bar having a slot in one arm thereof adapted to adjustably receive abolt therein for securement thereof to the front wall of the layadjacent the upper surface thereof at the multiple shuttle box endthereof and a plurality of horizontally aligned vertically extendingbolts projecting upwardly from the other arm thereof,` a supplementaladjusting L-bar having a base having a horizontal slot for adjustablyreceiving said adjusting bolts therein for horizontal adjustmentrelative to the end of the lay and an arm projecting upwardly therefromhaving vertically spaced horizontal slots projecting forwardly thereinfrom the rear edge thereof, and a cam plate having vertically alignedbolts on the front end thereof horizontally adjustable within said slotsand a rear cam edge projecting between the end of said lay and saidmovable shuttle box in the path of vertical reciprocation of saidmovable jaw actuating pins having a rear edge having a concave upperportion and a convex lower portion adapted to contact a respectiveactuating pin to raise its respective movable jaw of a respectivecompartment as said shuttle Abox is respectively raised or lowered tobring said respective compartment into alignment with the upper surfaceof the lay and an intermediate dwell portion to retain said movable jawin raised position, permitting movement of the shuttle to and from saidrespective compartment until the shuttle box is again reciprocated to adifferent position.

JOSEPH FRANCIS MUI-IEIM.

